1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
use std::ops::Deref;

use ruma::events::room::MediaSource;

use crate::{
    media::{MediaFormat, MediaRequest},
    BaseRoomMember, Client, Result,
};

/// The high-level `RoomMember` representation
#[derive(Debug, Clone)]
pub struct RoomMember {
    inner: BaseRoomMember,
    pub(crate) client: Client,
}

impl Deref for RoomMember {
    type Target = BaseRoomMember;

    fn deref(&self) -> &Self::Target {
        &self.inner
    }
}

impl RoomMember {
    pub(crate) fn new(client: Client, member: BaseRoomMember) -> Self {
        Self { inner: member, client }
    }

    /// Gets the avatar of this member, if set.
    ///
    /// Returns the avatar.
    /// If a thumbnail is requested no guarantee on the size of the image is
    /// given.
    ///
    /// # Arguments
    ///
    /// * `format` - The desired format of the avatar.
    ///
    /// # Examples
    ///
    /// ```no_run
    /// use matrix_sdk::{
    ///     media::MediaFormat, room::RoomMember, ruma::room_id, Client,
    ///     RoomMemberships,
    /// };
    /// # use url::Url;
    /// # let homeserver = Url::parse("http://example.com").unwrap();
    /// # async {
    /// # let user = "example";
    /// let client = Client::new(homeserver).await.unwrap();
    /// client.matrix_auth().login_username(user, "password").send().await.unwrap();
    /// let room_id = room_id!("!roomid:example.com");
    /// let room = client.get_room(&room_id).unwrap();
    /// let members = room.members(RoomMemberships::empty()).await.unwrap();
    /// let member = members.first().unwrap();
    /// if let Some(avatar) = member.avatar(MediaFormat::File).await.unwrap() {
    ///     std::fs::write("avatar.png", avatar);
    /// }
    /// # };
    /// ```
    pub async fn avatar(&self, format: MediaFormat) -> Result<Option<Vec<u8>>> {
        let Some(url) = self.avatar_url() else { return Ok(None) };
        let request = MediaRequest { source: MediaSource::Plain(url.to_owned()), format };
        Ok(Some(self.client.media().get_media_content(&request, true).await?))
    }

    /// Adds the room member to the current account data's ignore list
    /// which will ignore the user across all rooms.
    pub async fn ignore(&self) -> Result<()> {
        self.client.account().ignore_user(self.inner.user_id()).await
    }

    /// Removes the room member from the current account data's ignore list
    /// which will unignore the user across all rooms.
    pub async fn unignore(&self) -> Result<()> {
        self.client.account().unignore_user(self.inner.user_id()).await
    }

    /// Returns true if the member of the room is the user of the account
    pub fn is_account_user(&self) -> bool {
        match self.client.user_id() {
            Some(id) => id == self.inner.user_id(),
            None => false,
        }
    }

    /// Get the suggested role of this member based on their power level.
    pub fn suggested_role_for_power_level(&self) -> RoomMemberRole {
        RoomMemberRole::suggested_role_for_power_level(self.power_level())
    }
}

/// The role of a member in a room.
#[derive(Clone, Debug, PartialEq)]
#[cfg_attr(feature = "uniffi", derive(uniffi::Enum))]
pub enum RoomMemberRole {
    /// The member is an administrator.
    Administrator,
    /// The member is a moderator.
    Moderator,
    /// The member is a regular user.
    User,
}

impl RoomMemberRole {
    /// Creates the suggested role for a given power level.
    pub fn suggested_role_for_power_level(power_level: i64) -> Self {
        if power_level >= 100 {
            Self::Administrator
        } else if power_level >= 50 {
            Self::Moderator
        } else {
            Self::User
        }
    }

    /// Get the suggested power level for this role.
    pub fn suggested_power_level(&self) -> i64 {
        match self {
            Self::Administrator => 100,
            Self::Moderator => 50,
            Self::User => 0,
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_suggested_roles() {
        assert_eq!(
            RoomMemberRole::Administrator,
            RoomMemberRole::suggested_role_for_power_level(100)
        );
        assert_eq!(RoomMemberRole::Moderator, RoomMemberRole::suggested_role_for_power_level(50));
        assert_eq!(RoomMemberRole::User, RoomMemberRole::suggested_role_for_power_level(0));
    }

    #[test]
    fn test_unexpected_power_levels() {
        assert_eq!(
            RoomMemberRole::Administrator,
            RoomMemberRole::suggested_role_for_power_level(200)
        );
        assert_eq!(
            RoomMemberRole::Administrator,
            RoomMemberRole::suggested_role_for_power_level(101)
        );
        assert_eq!(RoomMemberRole::Moderator, RoomMemberRole::suggested_role_for_power_level(99));
        assert_eq!(RoomMemberRole::Moderator, RoomMemberRole::suggested_role_for_power_level(51));
        assert_eq!(RoomMemberRole::User, RoomMemberRole::suggested_role_for_power_level(-1));
        assert_eq!(RoomMemberRole::User, RoomMemberRole::suggested_role_for_power_level(-100));
    }

    #[test]
    fn test_default_power_levels() {
        assert_eq!(100, RoomMemberRole::Administrator.suggested_power_level());
        assert_eq!(50, RoomMemberRole::Moderator.suggested_power_level());
        assert_eq!(0, RoomMemberRole::User.suggested_power_level());

        assert_eq!(
            RoomMemberRole::Administrator,
            RoomMemberRole::suggested_role_for_power_level(
                RoomMemberRole::Administrator.suggested_power_level()
            )
        );
        assert_eq!(
            RoomMemberRole::Moderator,
            RoomMemberRole::suggested_role_for_power_level(
                RoomMemberRole::Moderator.suggested_power_level()
            )
        );
        assert_eq!(
            RoomMemberRole::User,
            RoomMemberRole::suggested_role_for_power_level(
                RoomMemberRole::User.suggested_power_level()
            )
        );
    }
}